NES Quest - The 8BIT Journey walkthrough
http://www.mrt-prodz.com/kcdgames/nesquest/index.html

 1. Pick up PHOTOCAMERA from bed.
 2. Open door.
 3. Walk to living room. (head downstairs)
 4. Open main door on right.
 5. Head to Mr. T's place.
 6. Pick up LIGHT SABER. (to the right of blue curtains)
 7. Pick up CHINESE FOOD from trash can. (lower right of screen)
 8. Give BROKEN NES to Mr. T.
 9. Open door and head back to the map.
10. Enter memorial park.
11. Pick up SMALL ROCK from the right of statue.
12. Open or push the bush next to it to find a WALLET.
13. Give WALLET to old woman to receive a BILL.
14. Talk to Matt. Ask about Jun the bully to reveal back alley's location.
15. Look at flyer in the garbage bin to reveal the tech store's location.
16. Leave memorial park and head to the tech store.
17. Open metallic cupboard to acquire a BRA.
18. Pick up MOP from inside the metallic cupboard as well.
19. Give BROKEN NES to technician.
20. Leave the tech shop and head to the back alley.
21. Pick up BROKEN SLINGSHOT when Jun is looking the other way.
22. Use BRA with BROKEN SLINGSHOT to create SLINGBRA.
23. Use ROCK with SMELLY OUTDATED FOOD to create HEAVY PROJECTILE.
24. Use HEAVY PROJECTILE with SLINGBRA to create LOADED SLINGBRA.
25. Use SLINGBRA on Jun the bully to knock him out.
26. Pick up BILL OF 20, then leave the crime scene. Go to Mr. T's place.
27. Talk to Mr. T. Say "I need a new Ricoh circuit for my NES!"
28. Leave Mr. T's place, and head back home.
29. Grab the COIN from the carpet on the floor. (bottom left)
30. Walk towards the left of the screen.
31. There's a MELON among the fake exotic fruits on the table.
32. Pick up MELON, then head upstairs. 
33. Open the door on your right to enter the bathroom.
34. Grab MAKEUP SET from the sink. Use MAKEUP SET with MELON.
35. Use MOP on MELON WITH MAKEUP to create MELON FACE.
36. Use MELON FACE with BATHROBE to create MY SISTER'S REPLICA.
37. USE PHOTOCAMERA with MY SISTER'S REPLICA to create PHOTO OF FAKE SISTER.
38. Exit bathroom and enter your room.
39. Use LIGHT SABER with PIGGY BANK. Pick up 29 COINS.
40. Leave the house, and head for Mr. T's place.
41. Give PHOTO OF FAKE SISTER to Mr. T to receive the RICOH CPU.
42. Leave Mr. T's place, and head for the tech store.
43. Give COIN, 29 COINS, BILL OF 20 and RICOH CPU to the technician.
44. Exit the tech store, and enter the building again.
45. Talk to the technician. He will request for a NES cart.
46. Leave the tech store, and head back home.
47. Open the kitchen door, then ask mum for a favor.
48. Ask mum to open the cupboard.
49. Say that the NES is broken, and you need the cart to test it.
50. Leave the house or head upstairs, then return to the living room.
51. Talk to mum again to receive the FISH FOOD. Head upstairs.
52. Use FISH FOOD on either the fish tank or Jason the fish to feed it.
53. Head downstairs and ask mum to open the cupboard.
54. You will receive the CUPBOARD KEY. Use CUPBOARD KEY on cupboard.
55. Pick up games in cupboard to add NES GAME into your inventory.
56. Leave the house, head for the tech store and enter it.
57. Give NES GAME to technician. Watch the ending.

Bonus: Talk to Chunk at any time to play the mini-game.